Carbon Sub Index breakdown

Date of Evaluation Date of Eval. Index Trait PTA *Carbon Cost (€) Contribution Contrib.
PTA * Carbon Cost
May 2025 Milk Sub Index 1.36
Milk (kg) -29.00 -0.014 0.41
Fat (kg) -1.75 -0.375 0.66
Prot (kg) -0.67 -0.441 0.30
Fertility Sub Index 2.79
Calving Interval (days) -1.75 -1.459 2.55
Survival (%) 0.21 1.117 0.23
Calving Sub Index -0.47
Gestation Length (days) 0.51 -0.919 -0.47
Beef Sub Index 0.29
Carcass Weight (kg) -2.00 -0.528 1.06
Age of Slaughter (days) 1.77 -0.432 -0.76
Maintenance Sub Index Maint. Sub Index 2.45
Live WT (kg) -8.00 -0.307 2.45
Total Carbon Sub Index 6.42

* Based on an €80/tonne carbon price